电气传动2012，Vol.42Issue(10)：18-21,34,5.
无刷直流电机换相转矩脉动抑制新策略
Torque Ripple Reduction of Brushless DC Motor
摘要
Abstract
Brushless DC motor (BLDCM) have a wide range of applications, easy to control, but its weakness is large torque ripple. Through the analysis of HPWM-LON modulation method for brushless DC motor's influence of electromagnetic torque during phase change, an improved pulse width modulation method was proposed, the combination of HON - LON and HPWM - LON. First of all, according to three phase current equations of commutation, motor electromagnetic torque can be get; second, compare commutation motor electromagnetic torque and steady-state motor electromagnetic torque, commutation electromagnetic torque ripple can be deduced; Finally, through the control on-all time of conducting state MOSFET, motor electromagnetic torque ripple can be minimum. The experiment proves the proposed improved pulse width modulation method can effectively restrain the torque ripple and improve system performance.关键词
无刷直流电机/相电流/转矩脉动/脉宽调制Key words
brushless DC motor(BLDCM) /phase current/torque ripple/pulse width modulation(PWM)分类
信息技术与安全科学引用本文复制引用
王会明,丁学明,尹武..无刷直流电机换相转矩脉动抑制新策略[J].电气传动,2012,42(10):18-21,34,5.基金项目
上海理工大学光电学院教师创新基金(GDCX-T-101) （GDCX-T-101）
